Number System Piano Lessons

The Number System is a simple way to remember the chords and progressions by using numbers instead of letters. The reason this is so help full is because if you remember the tones by numbers it is a lot easier when trying to transpose a song into different keys.
Because if your in the Key of C and the chord progressions moves from the C to the F chord then that would only apply to the C Scale. But if you said 1 to the 4 chord then you can take that pattern and apply it to any key and you would be getting the same chord progression.